miller



Aug'. 14, 1928.

w. J. MILLER APPARATUS FOR PRODUCING MOLD CHARGES OF MOLTEN GLASS FiledDeo. 16, 1925 3 Sheets-Sheet l 1 90mm M mm IN V EN TOR ATTORNEY I w. J.MILLER APPARATUS FOR PRODUCING- MO-LD CHARGES 0F MQLTEN GLASS Filed DeC.16, 1925 3 Sheets-Sheet IN V EN TOR.

ATTORNEY Patented Aug. 14, 1928.

lJNITED STATES PATENT orifice.

WILLIAM J". MILLER, F SWISSVALE, PENNSYLVANIA, ASSXG'NOR` O HARTFORD-IEMIEIRE COMPANY, F HARTFORD, CONNEQTICUT, .A CORPORATION 0F DELAWARE.

APPARATUS FOR PROD'UGING MOLD CHARGES OF MOLTEN GLASS.

Application filed December 16, 1925.

In general my present invention relates to 'the production of moldcharges of molten glass. v

One important feature of my invention is a combination in a unitarystructure of shear and shapingscup mechanism whereb the molten glass isdetached from the supp y and shaped, and then deposited in the mold orother receptcle.

Another important featureof my inven tion is a new and improved shearmechanism.

Another important feature of my invention is a new and improvedpa-rtible shapingcup mechanism.

Another important feature of my invention is the provision of means forregulatingand varying` the speed of operation and of the moving parts ofmy apparatus.

Other novel features of construction and operation and also ofarrangement of parts, will appear from the following description.

ln the accompanying drawings, wherein I have illustrated the bestembodiment of the principles of my invention now known to me, Fig. l isa plan view of a combined shear and shaping-cup mechanism embodying saidprinciples, the shears being shown closed and the shaping-cup open; Fig.2 is partially a side elevation thereof and partially a longitudinalsection taken along the irregular line ll--ll in Fig. 1; Fig. 3 is afront elevation, looking from the right in Fig. 1, and showing theshears closed and the shaping-cup open; F ig. l is a similar viewshowing the shears open and the shaping-cup closed, one cuppart being insection; Fig. 5 is a top plan View on enlarged scale, of the supportingblock of the upper shear blade and Fig. 6 is a similar but broken viewof the supporting block of the lower blade; Fig. 7 is a` sectional viewtaken along the line VII-VII in Fig. 5; Fig. 8 is a View of the hingemember of the shaping-cup part shown at the left in Figs. 3 and 4, thesame in Fig. 8 being turned around 180o from its position in Figs. 3 and4;; Fig. 9 is a plan view showing the bed plate, the cylinder, the rearcylinder head casting and the automatic valve, parts being` shown insection to better illustrate the structure; Fig. 10 is an enlarged andbroken longitudinal section of the cylinder and its heads; Fig. 11 is adetail showing the sup porti'r standard for the mechanism; 12 largedsectional view through the Serial No. 75,757.

cross-bar, the top guide bar and the spring seat; Figs. 13 and 14: areplan views of the two shear blades; F ig. 15 is an enlarged sectionalview showing; one of the shear blades and its mounting, and Fig. 16 isan end view of the same looking from the right in Fig. 15.

Referring to the drawings, the bed of the mechanism is a .casting whichhas at one end a box 1 having a horizontally disposed bore 2 in which isinserted a bushing 3 secured in place as bythe bolt 1. Extending1forwardly from the bottom of box 1 is an integral rib 5 which isprovided along its center with a` longitudinal slot (5 for a purpose tobe described. At its front end the rib 5 is curved upwardly and hasintegral therewith a transversely disposed cross-bar 7, provided at itscenter with a relatively shallow seat 8 disposed longitudinally of thecross-bar and of arcuate cross-sectional shape as shown in Fig. i) is ahelical spring` resting in said seat and protruding above the same, theextent of the springs expansion being limited by the contact of the endsof the spring with the ends of the seat.

1l is a block integral with the cross-bar and positioned in front of theseat 8 but of less length. 12 is a top guide bar which is supported bythe block 11 and secured thereto, as by the bolts 13, The bar 12 thusspaced above the cross-bar 7 and is parallel thereto. 1i represents wearplates secured to the upper faces of the end portions of the cross-bar7, the spaces between the wear plates and the under faces of theportions of top-bar 12 at either side of theblock l1 forming guidewaysinwhich the shear levers 15 slide as they are opened and closed, saidlevers engaging' the ends of the spring 9 as they approach their closedposition, thus compressing said springl and storing power to produce aquick initial opening of the shear blades.

The shear levers, two in number, are disposed one on either side andlongitudinally of the mechanism, as best shown in Fig. 1. The rear endsof said levers 15 are turned inwardly and provided with verticallydisposed pin-holes which are engaged by. the intermediate portions ofpivot pins 16 whose upper and lower ends are clamped in split collars 17integral with the rear casting 18, a pair of said collars beine.;provided at either side of said casting,

19 is a horizontally disposed fluid-pressure cylinder Whose front end isbolted to the box 1 of the bed plate, the bushing 3 forming' the frontcylinder-head, While the casting 18'is bolted to the cylinder V19 andfoi-ins its rear head.

20 is ay piston workiir,r in said cylinder and attaehed'to oryintegralwith a pistonrod 21 which protrudes through the bushing1 3.

'llhe outer end of the piston-rod 21 is liked lto the. center ofacross-head 22u/*hose outer ends are curved forwardly and-provided withpairs of upper and lower split collars Ql'between which are inserted.the pierced outer. ends of the links 2li which are pivotally attached tothe cross-head by pins 25 which extend through the ends of the linksand'have their ends clamped! in said split collars.V

The inner endsof. said links extend into transversely disposed openingsin the shear. levers 15 and are pivotally connected therein by pins 26which extend through holes in the links and have their ends clamped inthe upper and lower split collars 27 of the levers 15.

The upper surfaces of the links are providedwith seats 28 which areupwardly. contracted` in cross section so as to hold in place fillers 29of felt' which are kept saturated in oil so as to keep the parts insliding contact properly lubricated.'

1t is evident that when the piston 20 retreats iirtheeylinder 19, thecross-head 22 is drawn rearwardly and the slicar levers 15 are caused tonieve toward each other and assuine the closed position illustrated in.

solid'lines in Fig; 1. Likewise, as the piston advances in the cylinder,the cross-head isv inoved outwardly and the shear-levers are caused toassurne the separated or open positions indicated in dotted lines inFig. 1. 30 and 31 represent the two shear-blades which are forined ofsuitable steel and' preferably have their ceacting cutting` edgesnotched, as shown inl Figs. .13 and 1&1 so as to coniplete the cut atthe verticalv axis of the neck of Iglass by which the inold,l

charge' depends freni the feeder oriiice'in automatic feeding or fromthe punty in hand"y feeding.

Said blades are secured respectively on the supporting blocks 32 and 33,as by inea-ns ment screws 38 are screwed up through threaded holes inthe shear-lever and iinpingge against the under face o t the supportingblock near its corners. The boltsl 3T extend up through loosely fitting'holes in the shea-r arn'is-and are screwed into threaded holes in theblocks, as shown in liig. 15. llVhen the screws 38 have been properlyadjusted'to give the desired angular relation of the block to the sheararin, the bolts 3T are tightened in the threaded holes in the blockuntil the bolt heads bear tightly against the lower surface of the sheararin, thus locking,l the block in its adjusted position relative to theshear arin. Thus the supporting blocks inay be adjusted by tiltingL ontheir rounded bearings to aline and position the shear blades so thatthey will properly pass in sliding' contact as the shears close.

It is desirable to obtain resilient pressure between the shear. bladesand this provided for by ineans of the two spriru;A arias which aremounted on the shear-levers l5 in front of the' shear blades and haveoppositelj,v curved ends, so as to insure their inatinfr as the shearsclose. rl`he. arnis 39 inay be advantageously straightened by theshorter leaf-springs l1() niounted in unison with the arnis 39.

llleans are provided for properly coolingl the shear blades, said nieansoperating;n through the evaporation of nioisture applied to the undersurfaces ofthe blades.

Thus'the blocks 32 and 2li-lare provided with interior-chambers stl towhich a lsupply of water is maintained through the pipe connections l2to which are attached the flexible hose shown at 42 in Figi, 1G. 'l`hetop wall of said chambers provided with a plurality of ports -lfsl whichcontain fillings of felt la which is thus kept moist and the inoistureis thus applied to the under surface of the shea r'blades.

s it is desirable to apply moisture. to the greatestfpossible areaof theshear bladesl and asrlose up to the cutting` edgges as possibl'e, theblock 32 which carries the upper shear blade 30 is provided with atriangular extension Ll5 which approaches but does not reach tl e apexofthe notch of the shear blade 30 and past which the points of the lowershear blade 31 pass in assuming itsy closed* position. For the sainepurpose the block 33` which carries the lower shear blade 31 is`provided with a notched extension .lll which extends forwardly under theforwardly extendingy portions of the shear blade 31 but isstepped backfroni the eultingeclge.

The shaping-cup is shown as of the partible type and is comprised of thetwo halves 17 which are supported to swing;- on horizontal axes, theaxes ofl inovenient being so placed, as shown in Figs. 3 and l, that thecup-halves, when free, swine` outwardly Fil llll) llll into and maintaintheir separated or open positions shown in Fig. l.

The cup-halves have internal cooling chambers i8 in their walls throughwhich a current ot water is maintained by means of the flexible pipes49.

Each cup-half is secured, as by a screwbolt 50 in a hingesmember 5l, thetwo hingen'iembers being complementary to earh other and provided at thetops with horizontally disposed sleeves 52 which are rotatably mountedon the outer or front ends of a pair of pivot shafts 53 whose rear endsare pinned or otherwise lixed in horizontally disposed sleeves tif-lintegral with either side of a bracket-plate 55 which is bolted to theunder side of the bed-rib 5.

lt is evident that the outward setting of the axes upon which thecup-halves swing', hasthe result that the latter, when freed, willautomatically open and discharge their contents and remain open untilclosed by mechanism devised for that purpose.

The means shown for closing the euphalves together is as follows. Eachhingemember' is provided with an inclined surface 56 against which isbolted a spring?r lever 57 whose free end `extends upward and outwardly,substantially as shown, and is provided with a curved extremity. Thelevers are preferably stiffened and strengthened by a supplementaryleaf-spring 58.

`The levers 57 are so disposed that as the shear-levers 15 separate,after severingr the neck of a mold charge, the upper ends of the leversare engaged 'by cam surfaces 59 on the lower faces of the shear levers,causingl the upperends of the levers 57 to swing,` downwardly andoutwardly, and thus turning` the cup-halves from their open positions,shown in Fig'. 3, into their closed positions, shown `in Fig. 4, thusclosing the cup in position to receive the next mass of molten glass tobe deposited therein.

It is evident that when the shear-levers are returned to their closedposition, thus causing the neel; of themold charge to be severed, thecam surfaces v59 will move out of engagement with the spring levers 57,and gravity will cause the cup-halves to swing froln their closedpositions shown in Fig. L into their open position shown in Fig. 3, thusopening the cup and discharging the mold charge in the waiting mold orother receptacle.

To properly position the cup-halves in their closed positions and toenable slight irregularities of parts to be properly compensated for Iprovide each of the hinge-members with a projection (SO having athreaded hole up through which is screwed an abutment screw 6l whoseprotruding` end engages from below a lip 62 extending forwardly from thecenter of the braclreaplate 55. 'lhus bylidjusting the bolts (3l thecuphalves may be adjusted to properly close together, the resiliency ofthe spring),l levers' 57 maltinhr practical such adjustment.

An automatic valve is provided for controlling the admission of fluidpresure to and its relief from the cylinder 19. The same may beconveniently mounted on the rear end of the cylinder.

Thus 63 is the valve easing of substanw tiallVT cylindrical sha 3ehavine' its ends closed by *he heads Gil, and its rear side by theupwardly extending plate 65 integral with the rear casting or cylinderhead lil to which the casing 6&5 may be bolted. 6G is the hollow valvebody slidable in the casing G3, the extent of its movement in eitherdirection being` adjustable by means oit abutment screws G7 screwedthrough threaded holes in the casing heads.

The front side of casingl G3 is provided withv a port 68 which isconnected to the compressed air supply pipe G9, which pipe is providedin the usual manner with a device, indicated at 70, for introducing,y alimited amount of oil spray into the compressed air for the pi'lrpose oflubricatingr the valve and also the fluid pressure cylinder and itspiston.

The front side of the valve body GG is provided with a longitudinal slotil always in registration with the port G8, so that a supply ofcompressed air is maintained within the valve body at all times. 7E?, isa screw extendiiuil througli a threaded hole inV the casing` andengaging said slot to prevent rotation of the valve body.

73, 7 il and 75 represent three ports in the plate 65 leading.;w fromthe interior of the casing. Said ports are alined horizontally and thecentral port 7lwhich is positioned at the center of the casing` extendsthrough the plate and has its outer end open beneath a dependinp,` hoodor dei'lcctor 7G which entends down into a well 77 which may be formedintegrally with the casting,l 18 and which has its top closed by aremovable wire screen 78. Small passage: "ill lead downwardly atdiverging angles from the bottom of thewell 77 to the lower ends of thebores of the upper split collars i7, thus supplying,v oil to the hingepinsI if?) upon which the shear levers l5 are hinged. 'lhe port 7d is anopen exhaust port for the relief of presslu'e from the cylinder endsthrough the automatic valve and the same is always in communication witha recess or chamber d0 :in the side of the valve body (Se. 'lhe ports 73 and 75 are spaced equally to either side of the central or relief port7st at such distance therefrom that the recess 80 will connect one orthe other of said ports to the central exhaust port 7d. 'lhe rear wallof the valve body is provided with a. pair of ports 8l and da comiectedto its chambered interior and thus always in connl itil) lill)linunication with. the constant supply of'.

conipressedair. The ports 81 and 82 are so located that when the valveis slnrced to one limit of its inovenient the port SQ, as shovvn in Fig.9 is in registration with the port. T5, While the recess d() connectsthe port 'i3 to the 'relief port Likewise when the 'valve body shiftedto the otl er end ot its path of ino-vement, the port 81 in re trationwith the port 73 While the port o connected te the relie/1i port Tft bytln rece fs 80.

The valve body shifted in thiY casino by means ot the sprinp-closedbleede D r valve 83 and 84; et well known construction, which areconnected by pipes Se and Si", respectively, to the 1 ass-ages 853 andS9` resiliective" ly,lin the opposite easing; heads. 'lhe end Wallsoitthe valve body GG are provided with the usual restricted passages 9()'ifor they reestablislnnent oi' pressure in tne ends et the easing. l

The port' connected, in the manne later described herein, to the rearend el' th v[luid pressure cylinder 19 vvhile the port 7i is connectedtothe trent end ot sind cylinder, so that When the valve body 6G occupierthe position sliovvnin Fifi. 9, pre-i:i=,nre is bring admitted totherear end ot the cylinder and relieved from the tient end tliereoilf.thus ycausingy the shears to open. lilhen the valve body is shifted tothe opposite end el" the valve casing;` pressure is admitted to thefront end ot the cylinder and relieved troni the rear end thereof, thuscausingv the shea to close. l

The bleeder valve 83, which, when opened, causes the valve body to shiftinto the position` sho'vvn in Fie'. 9 is attached to the under side ofthe box` l in the path ot the rearward travel of a spring linger 91carried by a projection 92 depending` Yfrom the cross-head 22, andtherefore as the piston completes its inward stroke and the shearseoinpletetheir severing' operation, the opening' of the bleeder valve 83causes the automatic valve to shift, and the piston to start forwardly,thus causing;v the shears to open. As soon as. the pressure is relievedfrom the front of the piston through the openingV et the bleeder valve83, the spring 9 causes a qniclr initial opening` oi the shears.

The bleeder valve Sle is actuated at the proper time, eitherautomatically, such for instance as by the timer shown an( de scribed.in Letters 'latentot the United States No. 1,549,891- er No. 1549,20,thereby cruising` a reversal oit the automatic valve se that the travelot the piston in the cylin der is again reversed and the shears areagain closed. lf desired, as is usual in hand feeding, the bleeder valveSi may be operated by the operator who feeds the masses of glass to theshears and shapinecnp.

The speed oit travel of the pist-on. in either direction, .inopening andales". .i the reines,

may be regulated by the proper abutmcnt screw GT screwing;v in or out,thus :id ilrstinn the extent ot reejistration ot the valve ports. A inllregistration will admit and relieve` pressure at full volume, thus`causing maxi nunn speed of piston travel` vvhile by adjustine` theproper abutment :irrevv to obtain an incomplete registration restrictedto the proper denree, the speed et pis-:tou travel in either directionmay be nicely reiulzned.

l also provide means i'or cushioning the ends oit the strokes ot thepieten lo prevent the jars ot suddel stopihiagczl; and reversal. if amthus enabled te slovv dovvn the move-- nient ot the shear bladesdurinj'; thc cutting; operation which in a lvantiijfeoirf; in moldcharge formation, as it could 1hr production oit an upper tapered end tothe mold charge or gob.

l produce this cushioning' or slow-donn by restricting the pre-:saurerelief 'lroin the path oit the movingv piston as it approaches` the endot' n stroke.

Tl.; embedinzent oit thisflesiture ,illustrated in ne drawings is :is:lfollons Referring; lirst to the fluid-pressure connections olf theAren' end ot the cylinder 19, the port T5 et the autrnnatic valveextends into the plate G5 and connects with a ver* tical pass: j, S'linthe plate G5 Whose upper end is closed by the screw plop; 911 and whoselower end is connected by a port 95 in the end casting` 1S vvith theinterior ot the cylinder 19. A. needle valve 96 is provided to adjustthe capacity of the port 95. .il sec,e ond port 9T in the end casting;19 also con` nects the passage 9? with the intcrirnot ine cylinder, andsaid port is provided with a l .ll valve 98 which is arranged to freelyadmit tluid pressure to the cylinder but to prevent escape ot liuidpressure troni the cylinder. third port 99 connects the passage 93 witha horizontal passage 10() cast in the Wall ot the cylinder and whoseliront end is provided with :1 port vllll lcndiiu); into the interioroit the cylinder.

lt is evident that when the piston f2.0 is at the end of its rearwardstroke, the rcversal o'l" the automatic 'valve n'ill admit 'luidynessure through the passage SW and pest the ball valve 98, thusshu'tinpl the piston on its forward movement..

However, when the piston is nioviugi rcarwardly in the cylinder, and thepassage 9?) is connected througi'li thi, automatic valve to atmosphereto relieve the pressure in the path ol the movingv piston, the pressureescapes through the ports 101 and the valved port 95, while the hallvalve 9S closes the port 97. its the piston fuiproaehes the end oilI itsrearward movement. it seals the port 101 and the only escape for thepressure is through tl e port Whose capacity may be nicelyv adjusted bymeans ot the jinu pressure in the path of the moving piston produces avslowingup or cushioning eitcct on the piston which prevents a suddenjar, such asv would result were thepiston moving at unreduced speed whenit reached the end orl its stroke.

his the shear-blades are closed together by the rearward movement of thepiston, it is possible by the adjustment of the needle valve to obtainwith great accuracy the desired closing movement of the shears with theconsequent variations in shaping the ends oit the mold charges or gobs.`

l also provide a similar means for cushioninge,` the forward `movementof the piston. 'llhus 'the port 73 oi' the automatic valve is connectedto a vertical passage 102 in the plate G5 and the upper endet saidpassage isy connected by a pipe 103 with a port 101i in the top wall ofthe cylinder 19 near its front end. The port 104 communicates with theinterior of the cylinder 19 and is so located as to be covered andsealed by the piston as the latter approaches the end of a forwardmovement. The port 1041 is also connected with a passage 105 in thecylinder wall leading forwardly to the end of the cylinder and connectedwith the interior oit the cylinder by a port- 106 `which is sealedagainst escaping pressure trom the cylinder `by the` ball valve 107,which valve however does not interfere with the entrance o1 pres sureinto the cylinder through ,the port 106. The passage 105 is also`connected, near its iront or ball-valved end,`by a port`108 leading`into the cylinder and provided with the adjustable needle valve 109.

.lt is evidentthat the ball valve 107 will permit the free entrance ofpressure against the pistou to start its rearward movement, but as thepiston approaches the extremity oi a :forward movement, it will seal theport 10a and the escape of pressure from the path of the cylinder willclose the ball valve 10T, so that the only relief for the pressure inthe` path of the piston, as the latter approaches the end of the strokeis through the port 10S whose capacity may be nicely adjusted the needlevalve 109. rlthus. by adjusting,r theneedle valve I am enabled toproduce the desired slow down oit the piston movement, and thus cushionthe completion of its stroke.

l show means for mounting;n my improved feedingor mold-charge producingmechanism in place beneath the discharge orilice or outlet o1 a supplyreceptacle for molten glass, such as the shallow extension or boot or aglass tanlf. j

Thus 110, Fig. 11, represents a split colg .lar on the steel support orframe work of the lin-nace boot or any other suitable fixed supportwhich is properly located. i

1n said collar is clamped the upper end ol' a standard 111 whose lowerend is inserted in a split collar 112 mounted on and integral with thetop oi" the bei;` 1. lt is evident trat by tighteninf;v yEhe splitcollar 112 the shear and shaping ,up mechanisn'i will be lirmlysupported in position;v l preier to '.n'ovide the lower end ofthestandard 111 with one or more circuniferential grooves 1153 which may beengaged by the .set screw or screws 1141; screwed through threaded holesin 'the collar. ,l :un thus enabled to preliuiinarily support. the mech#anism in place before tightening the split collar 112, thus rendering'the mechanism temporarily rotatable with the standard 111 asan axis. husthe mechanism may be mounted on the standard in a position entending outfrom the hoot, and :it then may be swung into position beneath thefeeder outlet and be clamped` in position by tight-` ening 'the collar112. j

In Fig. 1, I have shown a bracket 115 bolted on the guide bar 12 and`provided with `an adjustable abutment screiv which may `be regulated tostrike against the side of the furnace boot,` indicated in dotted linesat 117 in Fig. 1, thus providing a convenient; limiting stop toautomatically halt the n'xeclianism with the vertical airis of theshaping cup properly lcentered with the feeder outlet. screw 116 hasbeen properlyadjusted, at any time that repairs or replacementsare to bemade or the mechanism `to be teniporarily put out oi' comniissiinn thecollar 112 may be loosened and theunitalry mechanism may be swung,withthe standard 111 as au axis, out from under the boot 117. Then it isdesired to put the mechanism back into its operative position, it isswung; in the reverse directionnntil the abutment rllhus, whentheabutment screw lltiimpinges against the bootll?,

thus halting,` the mechanism in its properly centered position.. Thecollar`112 is then tightly clamped on the .standard 111. The abutmentscrew may be positioned at either end ot theplate12 thus permitting themechanism to be swung;` in either direction.

To enable the position of the stende` rd 111 to be adjusted to suitmechanisms oit' dii'lercnt proportionsor dimensions, and also toproperly adjust the `position and center the mechanism horizontally, lprefer to malte the lower portion of the standard 111 eccentric `to'theupper portion, shown in Fig. 11, so that the lower end otthestandard may be properly positioned to support the particularmechanism in view. `The standard is shown provided with Spanner holes118 to facilitate its turning in the collar 110. j

I further provide means tor raising and lowering the mechanism on itssupport, thus providingfor Avertical adjustment. j

Thus l tread the upper end ol the standard 111 and screw thereon asupporting nut [119 ivhich bears dovvn on the top or'lthe collar 110.

` Thus Imay loosen't'he collar 110 slightly and adjust the nut 119 up orydown to position the ineehanismin the proper" horizontal plane.

ylillhat I 'desire toelaiin is 1. In apparatus tor producing mold'charges or molten glass,'the combination of severing; means, areceptacle "beneath the severing means, and resilient contact meanswhereby the retraction of t'lie'severing` means aftera severingoperation causes the recep- Ata'eley' to 'assunieits receptivepositon.

'2. In Happaratus AStor producing Amold charges otmoltenglass,thecombination of shearsr'or cuttingtheglass, a partiblereeep'tacle'beneath 'the shears and comprised et p'artsjnrounted 'tomove toward and Aaway from each other, and intermittently erlieetive'means rWhlneby l the Vopening` of the "shears 'causes the vreceptacleparts to move tovv' ard eachv other to coi'nplete the receptacle, saidreceptacle lparts" being freleased and being arranged to separate `bygravity as theshears eut. A

3. In apparatus /riorfprodueing' 'mold charges 'of linelteny glass,"'the A'combination et shears for cutting lthe glass, a Areceptacleberieat'hfthe shearsfandcoinprised of parts inovably supported l'in such"manner as to separate by'lgravity Whe'nrree,"ard means vvh'ereby ftheopening" or the shears causes the "receptacle parts l'tomove'ton'ardeaeh otherfand complete thereceptaele, said`v` parts beingreleasedand openiirgj byVA gravity as the shears inove toward/theirclosed position.

*""41`I`n 'apparatus -for producing `v`inold chargesot mltenglass,'thecombination ot shearsfffor e'ttin'g the glass,areceptacle'eomposed ot parts, 'movable' supports tor the receptacle'parts "and 'upon Which the` receptacle parts are f detaehably mounted,vand means vvhere'by vwhen they shears'open 'said supports are caused byresilientpressure to converge to complete j the receptacle andwv'hen'the shears elose'the sup'ports'diverge parting thereceptaele.

In apparatus for ,producing mold charges or molten glass,"thecombination or shears "for cutting` the glass, a receptacle cloniposedparts, movable supports 4for the reeepta'ele'parts and upon which thereceptacle parts are `detachably mounted, means 'whereby 'when theshears open said Y supports 'fare "caused by resilient pressure toconverge to complete vthe 'receptacle and when theshears closethesupports diverge partng'thereceptacle, and adjustableineans for limitinethe converoinff movementof C D C! said supports.

7G. In Vapparatus vfor producing meld charges otmoltenglass, theeonibination'of shears "for cuttingthe glass, a partible'receptaeleA toreceive the' glassbelow' theV shears,

neen-iev the receptacle parts being swingingly mounted and arranged todiverge by gravity to -part the "receptacle when released, aud meanswhereby when the shears open said parts are resiliently 'forced toconverge.

7. In shear mechanism tor severine' mold charges, the combination et a[luid-pressure cylinder, piston and piston-rod mechanism, apair ot4shear levers disposed at either side 'er' said cylinder and havingtheir rear ends pivotally 'attached adjacent to the rear end 'o'l"thecylinder, cutting` edges carried by tbe 'free ends et saidlevers, atransversely disposed"cross-head carried by the piston rod andeVX,tending` beyond the levers, and 'a link pivotallyfattaehed ateachend o1 the crossheadand havingits 'inner end pivotally eonneeted lto the adjacent lever.

"8. Inishear'mechanism vfor severine` mold charges, the'eembination oita huid-pressure Cylinder, piston and piston-rod mechanism, a'pair dl'shear'l'eversdisposed at either side et said Cylinder Aand havinfc,-their rear ends pivotally attachedadjacent to the rear end or thecylinder, cuttingr edges carried by vthe 'tree endsdt'said levers, atransversely 'disposed"erosshead fearred i by the piston red' andextending beyond'the levers, a link pivotally attached at each end oitthe crosshead and having yits inner end pivotally connected 'to theadjacent lever, and means :lor lubricatingthe portions of the cross-headand links Whichare in` sliding Contact.

'9. Inshearmeehanism lor severing,` mold charges, theeoinbination'ot alluidV-pressln'e cylinder, piston 'and piston-rod mechanism, a pair ot'shear levers disposed at either side dr'saidcylinder and 'having theirrear ends pivotallyattachedadjacent to the rear end ofthe Cylinder,cutting,- edges carried. by the Jree'ends tsaid levers, a transverselydisposedcrosshead carried by the piston rod and eX-tending beyond thelevers, a link pivo`tally"attaelied at'eaeh end ot the c1oss-l:ead andhaving its inner end pivotally connected to" theadjaeent le\`fer,"and`lubricant calrvinnj means interposed between the links and die crosshead.

10. In shearmechanism `l'or severine meld charges, the combination otshea r levers, means for Causingl said levers to eouvergije and diverge,a pair oitsbear blades arranged to be brought into cutting' relation bythe convergence ofthe levers, supporting ineinbersto Whiclrsaid bladesare attached, said members being` carried by and havingr rellingcontactWith the levers so that their posi* tion relativeitothe latter may beadjusted by tilting on their rolling contact, :fbntnnnt screws"positioned on lopposite sides of the contacts o'ritilting the membersrelative lo thelevers,'and means ter iixing the members in theiradjusted positions relative to lbe levers. Y

11.` Inshearmechanism for severing mold lill) llo lin

:noemer charges, the combination oi `shear levers, means torcausing`said levers to converge and diverge@ pair ot shear blades arranged to bebrought into cutting' relation by the convergence et the levers, suppebers to Awhich the shear biades are said members being; carried by thelevers and having;1 ball-shzuied bess Contact therewith so as to permitadjustment by tilting; them relative te the levers, and mezuis torlining; members .in their adjusted positions relative to the levers.

l2. lin shear mechanisn'i l'or severingy meid. charges, the combinationet shear levers, means tor causing said levers to converge and diverge,a pair et hear blades arranged. to be brought into cuttinp' relation bythe convergence et the levers, supporting` mem-- bers to which the shearblades are attached, said members bein carried by the .levers and havingball-sln'iped boss contact therewith so as to permit adjustment bytilting,` them relative 'to the levers, mechanical means tor tilting`the members on said contacts 'ter the purpose oit adjustment, and mean'for listino' the members in 'their adjusted positions .relative to thelevers.

i3. in shear mechanism. ter severnj, l mold charges, the combination oitshear levers, means tor causing said levers to converge and diverge, apair ot shear blades arranp L to be brought into cutting` relation bythe convergence ot the levers, supporting; meinbers to which the shearblades are attached, said members brfiilgj?l carried by the levers andhaving' rounded boss Contact therewith so as to permit adjustment bytilting,l them relative to the levers, abutn'ient screws interposedbetween the members and tbe levers 'tor tilting the members relative tothe levers to adjust the itormer, and. means tor tiring the members intheir adjusted positions.

14:. lin shear mechanism tor severing mold charges, the combination o'lshear levers, means tor causing said levers to converge and diverge, apair ot shear blades arranged to be brought into cutting relation. bythe convergence oi the levers, support-ing' meer bers to which the shearblades are attached, said members being,1 carried by the levers andhaving rounded boss contact thercvv'ith so as to permit adjustment bytilting` them relative to the levers, abutment screws inter posed.between the members and the levers tor tilting,- the members relative tothe levers to` adjust the former, and (irlanuyingg bolts to iin themembers in their adjusted position.

l5. in shear mechanism tor severing' mold chargesthe combination otbladesupports, shear-blades mounted on said supports, pads ot moistureretaining material. carried by said. supports in contact with thesurfaces ot said shear-blades, and means tor supplying' a moisteningliquid to said pads.

16. lin shear mechanism for severing mold charges, the combination otblade supports having` openings in their supporting.; surfaces,shear-blades mounted on said supports, telt iillers t'or saidopenii'igs, and meai'is tor supplying water to said lillers.

i7. lin shear mechanism tor severing mold charges, the combination etblade supports provided with interior chambers., means l'ormaiirtainingl a supply ot water to said chambers, shear-blades .mountedon said supports, rupertures` through the Walls et said chambers toadmit moisture to the surfaces of the shea'oblades, and :telt fillerstor said apertures.. i

i8. mounting :tor supporting mold chargeproducing mechanism in positionbeneath the discharge outlet ot a glass tur .nace which comprises avertically disposed standard supported to be rotated and to be lined in.position, said. support being pro vided with an eccentric portion towhich the mechanism. is secured, whereby by rotat ing said support theposition oli the mechanisin niay be adjusted horizontally.

19. it. mounting ior supporting` mold einige-producing mechanism inposition beneath the discharge outlet et a glass tur nace, whichcomprises a vertically disposed standard supported to be :rotated and tobe lined in. position, said support being pro vided with an eccentricportion, means for rotatabiy attaching the mechanism to the eccentricportion ot said support, and means for limiting the rotary movement oithe mechanism relative to the discharge outlet and on said support as ananis.

$20. i mounting for supporting' mold chargeproducin mechanism inposition bencath the discharge outletmot a zglass tur nace, whichcomprises a vertically disposed standard supported to be rotated and tobe lined in position, said support being provided with an eccentricportion, means ior rotatably attachinp,` the mechanism to the eccentricportion oit said support, and means for lining the mechanism relative tothe discharge outlet and on said support as an airis.

2l. In apparatus ttor producing' mold charges oit molten glass, thecombination of shears tor cutting; the glass, a partible receptaclebeneath the shears and comprising parts mounted to move trom theirclosed position by gravity, and means moving; in unison With the shearsand arranged to temporarily engage the receptacle parts as the shearsopen and te move said parts into and hold them in their closed position,said means being; dif-:engaged trom the receptacle parts as the shearsmove toward their closed position whereby the receptacle parts arereleased and open.

Q2. in apparatus toi' producing` mold charges of molten glass, thecombination oit shears for cutting' the glass, a partible receptaclebeneath the shears and. comprising,1

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parts fmoimtedto move f'from their' closed position by gravity, said'receptacle parts beingprovided with contact-members, and

meansmoving in unison With the shears and arranged to temporarily engage:saideontact members as the shears open and move said receptacle partsinto andmeintain them in their closed position, said means e being`leased and open.

Signed zit Pittsburgh, PLL., this 25th dey of November, 1925.

VHLLAM J'. MILLER.

